I don't know about trolling, maybe it is you that's trolling?Here is what I asked Customer Service:Hi, guest network is not working. I have 6 units connected with Ethernet backhaul through a Tp-link...

Kienzlenator wrote Guest network works just fine under ethernet backhaul. No, guest network does not work fine with Ethernet backhaul. They do, in fact, not work at all, as stated by TP-Link customer...

@TP-Link, you should make an amendment to the frist post in this thread: you need to let your customers know that guest network does not work when running Ethernet backhaul.

- Get the guest network to function during Ethernet backhaul.

The Deco M5 apparently does NOT support guest network when Ethernet backhaul is enabled! What an incredible shocker! If I knew that when I decided to buy a Mesh network, I would have chosen another...